DE69925243T2 - Datenprozessor und datenspeichermedium - Google Patents

Datenprozessor und datenspeichermedium Download PDF

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Publication number
DE69925243T2
DE69925243T2 DE69925243T DE69925243T DE69925243T2 DE 69925243 T2 DE69925243 T2 DE 69925243T2 DE 69925243 T DE69925243 T DE 69925243T DE 69925243 T DE69925243 T DE 69925243T DE 69925243 T2 DE69925243 T2 DE 69925243T2
Authority
DE
Germany
Prior art keywords
data
information
digital
embedded
watermarking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69925243T
Other languages
German (de)
English (en)
Other versions
DE69925243D1 (de
Inventor
Masaya Yamamoto
Tomoyuki Osaka-shi NONOMURA
Masataka Minami
Masayuki Neyagawa-shi Kozuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69925243D1 publication Critical patent/DE69925243D1/de
Publication of DE69925243T2 publication Critical patent/DE69925243T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Image Processing (AREA)
  • Television Systems (AREA)
DE69925243T 1998-10-08 1999-10-08 Datenprozessor und datenspeichermedium Expired - Lifetime DE69925243T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28708698 1998-10-08
JP28708698 1998-10-08
PCT/JP1999/005567 WO2000021089A1 (fr) 1998-10-08 1999-10-08 Processeur de donnees et support contenant ces donnees

Publications (2)

Publication Number Publication Date
DE69925243D1 DE69925243D1 (de) 2005-06-16
DE69925243T2 true DE69925243T2 (de) 2006-02-23

Family

ID=17712880

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69925243T Expired - Lifetime DE69925243T2 (de) 1998-10-08 1999-10-08 Datenprozessor und datenspeichermedium

Country Status (7)

Country Link
US (1) US6529506B1 (ko)
EP (1) EP1047067B1 (ko)
KR (1) KR100351485B1 (ko)
CN (1) CN1269126C (ko)
AU (1) AU760164B2 (ko)
DE (1) DE69925243T2 (ko)
WO (1) WO2000021089A1 (ko)

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DE10194725B3 (de) * 2000-10-31 2017-05-18 Sony Corporation Datenaufzeichnungs- und Wiedergabegerät mit Kopierschutzfunktion

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Publication number Priority date Publication date Assignee Title
DE10194725B3 (de) * 2000-10-31 2017-05-18 Sony Corporation Datenaufzeichnungs- und Wiedergabegerät mit Kopierschutzfunktion

Also Published As

Publication number Publication date
WO2000021089A1 (fr) 2000-04-13
EP1047067B1 (en) 2005-05-11
AU760164B2 (en) 2003-05-08
CN1288565A (zh) 2001-03-21
CN1269126C (zh) 2006-08-09
US6529506B1 (en) 2003-03-04
DE69925243D1 (de) 2005-06-16
AU6005899A (en) 2000-04-26
KR100351485B1 (ko) 2002-09-05
KR20010032891A (ko) 2001-04-25
EP1047067A4 (en) 2002-01-09
EP1047067A1 (en) 2000-10-25

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8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP